JP2011096453A - Led lighting having irradiation direction adjustment mechanism and street light using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power-saving LED lighting having an irradiation direction adjustment mechanism of a screw base for achieving a street light for applying light to a wide range, such as an expressway having wide width with required illuminance, and to provide a street light using the LED lighting. <P>SOLUTION: In the LED lighting, a luminous surface where a plurality of LEDs are disposed on a substrate is covered with a dust-proof, moisture-proof cover including the screw base. In the LED lighting, after fitting and fixing the screw base to an illuminator, the irradiation direction adjustment mechanism for adjusting luminous flux from the luminous surface in a prescribed irradiation direction is provided between the screw base and the substrate. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is an LED lighting lamp in which a light emitting body in which a plurality of LEDs are arranged on a substrate is enclosed in a dustproof moisture-proof cover provided with a screwing cap, and after mounting and fixing the screwing cap on a lighting fixture, The present invention relates to an LED illuminating lamp capable of adjusting a luminous flux from the light emitting surface in a predetermined irradiation direction, and a street lamp using the LED illuminating lamp.

Several inventions have been disclosed for street lamps using LEDs as light emitters.
For example, in Japanese Patent Application Laid-Open No. 2004-200102, “in a white light-emitting diode illuminating device configured by arranging a plurality of white light-emitting diodes, a plurality of planar printed circuit boards to which a plurality of white light-emitting diodes are attached are white light-emitting diodes”. Is disclosed in Japanese Patent Application Laid-Open No. 2008-258007, and “Lighting Device Post” is disclosed in Japanese Patent Application Laid-Open No. 2008-258007. A street lamp that is held on top of the lighting fixture, and is mounted on the lighting fixture so as to point downward in a plurality of lighting units in which a lens and a light emitting diode are integrated, and the lighting unit can be changed in angle by an angle adjusting means. In addition, a “street light that can arbitrarily change the light distribution of lighting” is disclosed.
These inventions can be used as an illuminator that attempts to expand the lighting range of street lamps in response to the fact that the range in which the predetermined illuminance can be obtained inevitably narrows with LEDs that are focused with a lens to increase the illuminance. In the invention, when a street lamp using a conventional incandescent bulb or fluorescent lamp is renewed, it is necessary to replace all the lighting fixtures attached to the upper part of the column, which increases the installation cost.
On the other hand, if it is an LED illuminating lamp with a screw cap as in the case of an incandescent bulb, it is only necessary to replace the dustproof and moisture-proof cover, so that the installation cost can be reduced and the power consumption of the streetlight can also be realized. . However, many of the LED lighting lamps that have already been put into practical use are provided with a substrate in which a plurality of LEDs are arranged on the large-diameter side of a hollow frustoconical outer member (tubular body), and are provided with a screw base on the small-diameter side, Since a transparent cover is arranged in front of the light source part, it can be used immediately if it is a street light that illuminates a small area on a road in a residential area, etc., but it can be used in a wide range such as a wide motorway. For street lamps that illuminate with the required illuminance, there is no choice but to replace the lighting fixtures using the lighting fixtures as in the inventions of Patent Document 1 and Patent Document 2.

JP 2004-200102 A JP 2008-258007 A

  In view of the above-mentioned background art, the present invention realizes a street light that illuminates a wide range such as a wide motorway with a necessary illuminance with low installation costs, and can save power, and LED illumination with an irradiation direction adjustment mechanism of a screw cap is provided. The present invention intends to provide a street lamp using the lamp and the LED illumination lamp.

The present inventors have solved the above problems by the following means.
(1) In an LED lighting lamp in which a light emitting surface in which a plurality of LEDs are arranged on a substrate is enclosed with a dustproof moisture proof cover provided with a screwing cap, the screwing cap is attached to a lighting fixture and fixed, An LED illumination lamp with an irradiation direction adjusting mechanism, characterized in that an irradiation direction adjusting mechanism for adjusting a light flux from a light emitting surface in a predetermined irradiation direction is provided between the screw base and the substrate.

  (2) The irradiation direction adjusting mechanism includes a cylindrical fixing portion that fixes the screw base to an outer end portion thereof, and a rotating portion that is rotatably inserted into the fixing portion. A cylindrical-shaped rotation shaft portion to be inserted into the fixed portion, a substrate mounting portion that is provided integrally with the tip of the rotation shaft portion and mounts the substrate on which the plurality of LEDs are arranged, and a rotation shaft The LED illumination lamp with an irradiation direction adjusting mechanism according to item (1), further comprising a flange provided integrally with the rear end of the unit.

  (3) The rotating shaft portion of the cylindrical body of the rotating portion is formed longer than the fixed portion, and when the rotating shaft is inserted into the fixed portion, the rotating portion is turned around the tip protruding from the fixed portion. (1) or (1) characterized in that it comprises a male screw part for screwing a lock screw that locks the turning part and the fixed part after adjusting the irradiation angle of the LED by turning around the axis of movement. The LED illumination lamp with an irradiation direction adjustment mechanism as described in (2).

  (4) A ball plunger is provided on the flange of the rotating part, and the inner wall of the fixed part on the side in contact with the flange of the rotating part is rolled to a depth corresponding to the height of the ball plunger. And a rotating part is inserted so that the head of the ball plunger abuts on the widened part, and the ball plunger is attached to a detent pin disposed on the widened part of the fixed part. With the irradiation direction adjustment mechanism according to any one of the preceding items (1) to (3), wherein the rotation unit is configured to be able to prevent one or more rotations of the rotation part by striking. LED lighting.

  (5) Any one of (1) to (4) above, wherein an electric wire for supplying power to the LED from the screw cap is inserted through a hollow shaft of the rotating portion of the rotating portion. An LED illumination lamp with an irradiation direction adjusting mechanism according to claim 1.

  (6) The upper part of the dust-proof and moisture-proof cover fixed to the rotating part is a metal heatsink that is equipped with a substrate on which an LED is disposed and has a heat dissipation fin that dissipates heat generated from the LED to the outside. The LED illumination lamp with an irradiation direction adjusting mechanism according to any one of (1) to (5), wherein the lower part is a transparent cover.

  (7) Any one of the above items (1) to (6), wherein each of the plurality of LEDs includes a lens for increasing illuminance and providing substantially uniform illuminance to a predetermined irradiation range. LED illumination lamp with an irradiation direction adjusting mechanism according to item.

  (8) A street light using the LED illumination lamp with an irradiation direction adjusting mechanism as described in (1) to (7) above, wherein the LED illumination lamp with the irradiation direction adjusting mechanism is provided in a hood provided on an upper portion of the support column. A street light characterized in that a socket to which a screw base is screwed is attached with its opening oriented horizontally or slightly upward from the horizontal.

  (9) When the street light described in (8) above is mounted with the LED illumination lamp with the angle adjustment mechanism on the socket, an annular silicone rubber is sandwiched between the lock screw of the LED illumination lamp and the socket. A street lamp characterized by having a waterproof effect.

  (10) After screwing and fixing the LED illuminating lamp with the angle adjusting mechanism into the socket, the dust proof and moisture proof cover of the LED illuminating lamp is gripped and rotated so that the luminous flux of the LED is directed in a predetermined direction. (8) or (9) above, wherein after the adjustment in the predetermined direction is completed, the lock screw is tightened to lock the rotating portion to the fixed portion, thereby preventing loosening due to vibration or the like. Street light as described in.

The following effects can be expected from the LED lighting with the irradiation direction adjusting mechanism of the present invention and the street lamp using the LED lighting.
<1> Since the LED illuminating lamp with an irradiation direction adjusting mechanism of the present invention has a screw cap, in a street lamp using a lamp having a screw cap as an incandescent lamp or the like as a light source, the lamp is equipped with an irradiation direction adjusting mechanism of the present invention. It is only necessary to replace it with an LED illuminating lamp, so that the installation cost can be reduced and power saving of the street lamp can be realized.

  <2> Since the LED illuminating lamp with an irradiation direction adjusting mechanism of the present invention has an irradiation direction adjusting mechanism, the LED illuminating lamp is screwed into a screw-in socket of a street light, and then the LED luminous flux is predetermined. Therefore, the LED lighting can be securely and firmly brought into contact with the electrode of the screw-in socket of the street light, and the power supply to the LED lighting can be reliably and stably performed. it can.

  <3> Since the lock screw for locking the fixed portion and the rotating portion of the irradiation direction adjusting mechanism is provided, the LED illumination light is attached to the street light, and after adjusting the irradiation direction of the LED, the lock screw is tightened. As a result, the fixed portion and the rotating portion are firmly joined, and a change in the LED irradiation direction due to vibration or the like can be prevented.

  <4> Since the ball plunger is provided in the rotating part and the rotation preventing pin is provided in the fixed part, the rotation of the rotating part is limited within a range of one rotation, and the hollow shaft center of the rotating part Electric power necessary for light emission of the LED can be stably supplied without twisting the electric wire passed through the section.

  <5> Since the upper part of the dust-proof moisture-proof cover that is fixed to the rotating part and protects the LED by enclosing it is made of a metal heatsink provided with heat radiation fins, on the substrate mounted on the heatsink The LED heat can be radiated to the outside through the heat dissipating fins of the heat radiating body to suppress the temperature rise of the LED, and the light emission of the LED can be stabilized and the life can be extended.

  <6> Each of the plurality of LEDs is provided with a lens for increasing the illuminance and giving a substantially uniform illuminance to the predetermined irradiation range. Therefore, the irradiation range required for the street lamp is almost equal to the necessary illuminance. Can be illuminated.

  <7> A street lamp using the LED illumination lamp with the irradiation direction adjusting mechanism of the present invention is installed by screwing the screw cap of the LED illumination lamp with the irradiation direction adjusting mechanism into a hood provided on the upper portion of the support column. Since the opening of the socket is attached in the horizontal direction or slightly upward from the horizontal, the LED lighting with the irradiation direction adjusting mechanism can be easily mounted, and the town having the effects <1> to <6> described above. A street light can be realized.

  <8> When the street lamp is mounted with the LED illumination lamp with the angle adjustment mechanism in the socket, an annular silicon rubber is sandwiched between the lock screw of the LED illumination lamp and the socket. It is possible to prevent moisture such as raindrops and fog from entering the waterproof socket and enhance the waterproof effect.

1 is an external view of an embodiment of an LED lighting with an irradiation direction adjusting mechanism of the present invention. External view of another embodiment of LED lighting with irradiation direction adjustment mechanism of the present invention Sectional drawing which shows the structure of LED lighting with an irradiation direction adjustment mechanism Perspective view of irradiation direction adjustment mechanism Structure diagram of street light equipped with LED lighting with irradiation direction adjustment mechanism

The form for implementing this invention is demonstrated based on the figure of an Example.
1-1 is an external view of an embodiment of an LED illuminating lamp with an irradiation direction adjusting mechanism of the present invention, and FIG. 1-2 is an external view of another embodiment of an LED illuminating lamp with an irradiation direction adjusting mechanism of the present invention. 2 is a cross-sectional view showing the structure of the LED illumination lamp with the irradiation direction adjustment mechanism shown in FIG. 1-1, FIG. 3 is a perspective view of the irradiation direction adjustment mechanism, and FIG. 4 is a town equipped with the LED illumination lamp with the irradiation direction adjustment mechanism. It is a structure figure of a street light.
In the figure, 1, 1 'is a substrate, 2 is an LED, 3, 3' is a dust and moisture proof cover, 3a is a heat radiating body, 3b is a transparent cover, 4 is a screw cap, 5 is an irradiation direction adjusting mechanism, 5a is a fixing portion, 5b Is a rotating part, 51 is a rotating shaft part, 52 is a substrate mounting part, 53 is a flange, 54 is a male screw part, 55 is a ball plunger, 56 is a hollow shaft center part, 57 is a part with an expanded inner diameter, and 58 is a rotating part. A stop pin, 6 is a lock screw, 10 is a head of the face, 11 is a post, 12 is a hood, 13 is a socket, and 14 is silicone rubber.

FIG. 1-1 is an external view of an embodiment of an LED illumination lamp with an irradiation direction adjusting mechanism of the present invention, FIG. 2 is a cross-sectional view showing the structure thereof, and FIG. 1-2 is an external view of another embodiment. Indicated.
The embodiment of the LED illuminating lamp with irradiation direction adjusting mechanism of the present invention shown in FIG. 1-1 has a plurality of LEDs 2 arranged in a row on a substrate 1 as shown in the side view of FIG. And a screw cap 4 is provided at one end in the longitudinal direction of the dust-proof and moisture-proof cover 3 including the light emitting surface. In addition to the LED illumination lamp with an irradiation direction adjusting mechanism of the present invention shown in FIG. As shown in the bottom view of (b), in this embodiment, a plurality of LEDs 2 are concentrically arranged on a disc-shaped substrate 1 'to form a light emitting surface, and the light emitting surface is included. A screw cap 4 is provided at one end of the circumference of the dustproof and moistureproof cover 3 '. In any case, after the screw cap 4 of the LED illumination lamp with the irradiation direction adjusting mechanism is screwed into the lighting fixture, the irradiation direction adjusting mechanism 5 (in which the light flux from the light emitting surface is adjusted to a predetermined irradiation direction) ( 2) is provided between the screw cap 4 and the substrate 1.
In addition, the upper part of the dust and moisture proof cover 3 is made of a metal radiator 3a provided with heat radiating fins for radiating the heat generated in the dust and moisture proof cover 3 to the outside, and the lower part is constituted by a transparent cover 3b. The substrate 1 having the LED 2 disposed on the lower surface of the heat radiating body 3a is mounted to dissipate the heat generated from the LED 2 to the outside, and the light beam from the LED 2 is irradiated downward through the transparent cover.
Further, an electric wire (not shown) for supplying power from the screw cap 4 to the LED is inserted through the hollow shaft 56 of the rotating portion 5b.

The structure of the irradiation direction adjusting mechanism which is the main point of the present invention is shown in the sectional view of FIG. 2 and the perspective view of FIG.
As shown in FIGS. 2 and 3, the irradiation direction adjusting mechanism 5 is inserted into the fixed portion 5a of the cylindrical body that fixes the screw base 4 to the outer end thereof, and is rotatably inserted into the fixed portion 5a. The rotating portion 5b is provided integrally with the cylindrical-shaped rotating shaft portion 51 inserted into the fixed portion 5a and the distal end of the rotating shaft portion 51. A substrate mounting portion 52 for mounting the substrate 1 on which the plurality of LEDs 2 are arranged, and a flange 53 that is also provided integrally with the rear end of the rotating shaft portion 51 are formed.
And the rotation shaft part 51 of the said rotation part 5b is formed longer than the fixing | fixed part 5a, and when the rotation shaft part 51 is inserted in the fixing | fixed part 5a, it turns to the front-end | tip part which protrudes from the fixing | fixed part 5a. After adjusting the irradiation direction of the LED 2 by rotating the portion 5b around the rotation axis, a male screw portion 54 is provided to which a lock screw 6 for locking the rotation portion 5b and the fixing portion 5a is screwed.
Further, a ball plunger 55 is projected from the flange 53 of the rotating portion 5b, and the inner wall of the fixed portion 5a on the side where the flange 53 of the rotating portion 5b abuts has a depth corresponding to the height of the ball plunger 55. The inner diameter of the fixed portion 5a is increased by rolling the inner portion of the fixed portion 5a to facilitate rotation of the rotating portion 5b so that the ball plunger 55 and the fixed portion 5a come into contact with each other. The portion 57 is provided with a rotation-preventing pin 58 that prevents the rotation portion 5b from rotating more than once.
The perspective view of FIG. 3 is normally arranged in the horizontal direction as shown in FIG. 2 in order to clearly show the shapes and the interrelationships of the fixing portion 5a, the rotating portion 5b, and the lock screw 6 in the irradiation direction adjusting mechanism 5. The irradiation direction adjusting mechanism 5 is vertically arranged (vertical direction). Therefore, although the anti-rotation pin 58 is drawn so as to be suspended from the upper portion of the portion 57 having an enlarged inner diameter, the anti-rotation pin 58 is not limited to the illustrated one, but from the wall surface of the portion 57 having an enlarged inner diameter. What protruded horizontally and what left uncut part when rolling the inner wall of the fixing | fixed part 5b may be used. The point is that the rotation of the rotating portion 5b is prevented from rotating by one or more rotations when the ball plunger 55 erected on the flange 53 of the fixed portion 5a (expressed in the state depicted in FIG. 3) hits. Any shape that can prevent kinking of an electric wire (not shown) that supplies power to the LED 2 from the screw base 4 inserted through the hollow shaft center portion 56 of the portion 5b may be used.

  In addition, each of the plurality of LEDs 2 is provided with a lens for increasing the illuminance and providing a substantially uniform illuminance within a predetermined irradiation range.

As shown in FIG. 4, the street light using the LED illumination lamp with the irradiation direction adjusting mechanism is screwed into the screw cap 4 of the LED illumination lamp with the irradiation direction adjustment mechanism in the hood 12 provided on the upper side of the column 11. The socket 13 to be mounted is attached with its opening directed horizontally or slightly upward from the horizontal.
When the screw cap 4 of the LED lamp with the irradiation direction adjusting mechanism is screwed into the socket 13 and attached, an annular silicon rubber 14 is inserted between the lock screw 6 of the LED lamp and the socket 13. It is sandwiched to enhance the waterproof effect.

The LED illumination lamp with the irradiation direction adjusting mechanism is attached to the street lamp by the following procedure.
A. The screw cap 4 of the LED illumination lamp with the irradiation direction adjusting mechanism is screwed into the socket 13 disposed in the hood 12 of the street lamp.
I. After confirming that the screw base 4 has been completely screwed in and fixing, the dust-proof moisture-proof cover 3 of the LED lighting is gripped and rotated, and the light flux of the LED 2 is adjusted to face in a predetermined direction. .
C. After adjusting the luminous flux of the LED 2 in a predetermined direction, the lock screw 6 is tightened to lock the rotating portion 5b to the fixed portion 5a to prevent loosening due to vibration or the like.

  As an example of the LED lighting with the irradiation direction adjusting mechanism of the present invention, FIG. 1-1 shows the LED arranged in one row, and FIG. 1-2 shows the LED arranged in two concentric rows, For example, the LED arrangement may be arranged in two rows or in an elliptical shape, and an LED arrangement capable of illuminating the illumination range efficiently and accurately should be selected. Is preferred.

1, 1 ': Substrate 2: LED
3, 3 ': Dust / moisture-proof cover 3a: Radiator 3b: Transparent cover 4: Screw cap 5: Irradiation direction adjusting mechanism 5a: Fixing part 5b: Turning part 51: Turning shaft part 52: Board mounting part 53: Flange 54 : Male screw part 55: Ball plunger 56: Hollow shaft center part 57: Part with expanded inner diameter 58: Non-rotating pin 6: Lock screw 10: Street light 11: Post 12: Hood 13: Socket 14: Silicon rubber

Claims (10)

  In an LED lighting lamp in which a light emitting surface on which a plurality of LEDs (2) are arranged on a substrate (1) is enclosed in a dustproof moisture proof cover (3) provided with a screw cap (4), the screw cap (4 ) Is mounted on and fixed to a lighting fixture, and an irradiation direction adjusting mechanism (5) for adjusting the light flux from the light emitting surface in a predetermined irradiation direction is provided between the screw base (4) and the substrate (1). An LED illumination lamp with an irradiation direction adjusting mechanism.   The irradiation direction adjusting mechanism (5) has a cylindrical fixing part (5a) for fixing the screw base (4) to the outer end thereof, and a rotating part rotatably inserted into the fixing part (5a). (5b), and the rotating portion (5b) is integrated with a cylindrical-shaped rotating shaft portion (51) inserted into the fixed portion (5a) and the tip of the rotating shaft portion (51). A board mounting part (52) for mounting the board (1) on which the plurality of LEDs (2) are arranged, and a flange provided integrally with the rear end of the rotating shaft part (51) The LED illumination lamp with an irradiation direction adjusting mechanism according to claim 1, wherein   The rotating shaft portion (51) of the cylindrical body of the rotating portion (5b) is formed longer than the fixed portion (5a), and is fixed when the rotating shaft portion (51) is inserted into the fixed portion (5a). The rotating portion (5b) and the fixed portion (after the rotation angle of the LED (2) is adjusted by rotating the rotating portion (5b) around the rotating axis at the tip portion protruding from the portion (5a). The LED illumination lamp with an irradiation direction adjusting mechanism according to claim 1 or 2, further comprising a male screw portion (54) for screwing a lock screw (6) for locking 5a).   A ball plunger (55) is provided on the flange (53) of the rotating part (5b), and an inner wall of the fixed part (5a) on the side in contact with the flange (55) of the rotating part (5a) is disposed on the ball plunger. A rotating portion (5b) is formed so that the inner diameter is widened by rolling a depth corresponding to the height of (55), and the head of the ball plunger (55) abuts on a portion (57) whose inner diameter is widened. ) Is inserted, and the ball plunger (55) abuts against a detent pin (58) disposed in a portion (57) having an enlarged inner diameter of the fixed portion (5a), whereby the rotating portion ( The LED illumination lamp with an irradiation direction adjusting mechanism according to any one of claims 1 to 3, wherein the LED illumination lamp is configured to be able to suppress rotation of one rotation or more of 5b).   An electric wire for supplying power from the screw cap (4) to the LED (2) is inserted into the hollow shaft center (56) of the cylindrical rotating shaft of the rotating portion (5b). The LED illuminating lamp with an irradiation direction adjusting mechanism according to any one of claims 1 to 4.   A substrate on which the upper part of the dust and moisture proof cover (3), which is fixed to the rotating part (5b) and protects the substrate (1) in which the LEDs (2) are arranged in a row, is disposed on the LED (2). A metal radiator (3a) equipped with (1) and provided with radiation fins for radiating heat generated from the LED (2) to the outside, wherein the lower part is a transparent cover (3b). Item 6. An LED illumination lamp with an irradiation direction adjusting mechanism according to any one of Items 1 to 5.   Each of these LED (2) is equipped with the lens for raising illumination intensity and giving substantially equal illumination intensity to a predetermined irradiation range, The any one of Claims 1-6 characterized by the above-mentioned. LED lighting with an irradiation direction adjustment mechanism.   A street light (10) using the LED illumination lamp with an irradiation direction adjusting mechanism according to claim 1, wherein the irradiation direction adjusting mechanism is provided in a hood (12) provided on an upper portion of a support column (11). A street light characterized in that a socket (13) into which a screw base of an LED illumination light is screwed is attached so that the opening thereof is oriented horizontally or slightly upward from the horizontal.   The street lamp according to claim 8, wherein when the LED illumination lamp with the angle adjusting mechanism is mounted on the socket (13), an annular shape is provided between the lock screw (6) of the LED illumination lamp and the socket (13). A street lamp characterized by having a silicone rubber (14) sandwiched therebetween to enhance the waterproof effect. After screwing and fixing the LED illuminating lamp with the angle adjusting mechanism into the socket (13), the dust proof and moisture proof cover (3) of the LED illuminating lamp is gripped and rotated so that the luminous flux of the LED is directed in a predetermined direction. After the adjustment in the predetermined direction, the lock screw (6) is tightened to lock the rotating part (5b) to the fixed part (5a) so that loosening due to vibration or the like can be prevented. The street light according to claim 8 or 9, characterized in that.